Legg Associates Inc

Jackson Spring Logo

Jackson Spring

Custom Springs, Wireforms and Fourslide Components for Aerospace, Defense, Medical and Industrial Programs

ISO 9001  •  IATF 16949  •  ITAR  •  FFL
Compression spring — Jackson Spring custom spring manufacturer
Extension spring — U.S. spring and wireform supplier
Torsion spring — precision spring manufacturer
Custom wireforms — Jackson Spring fourslide wireform production
Jackson Spring has been manufacturing precision springs and wireforms in the U.S. since 1962. Engineers and procurement teams across aerospace, defense, medical, firearms, and industrial markets rely on Jackson Spring when they need tight-tolerance springs with full documentation — from prototype through multi-million piece production runs.
MaterialsMusic Wire, High Tensile Music Wire, Rocket Wire, Missile Wire, Pre-plated Music Wire, Stainless Steel (302/304/316/17-7), HDMB, Oil Tempered, Oil Tempered Chrome Silicon, Valve Quality Chrome Silicon, Phosphor Bronze, Inconel, 3-Strand Wire. Additional materials available on request.
Wire Diameters0.008 to 0.312 in (0.20 to 7.9 mm) typical
Part EnvelopeOD to approximately 6 in typical; lengths to approximately 24 in. Broader ranges considered on review.
Typical TolerancesOD ±0.005 in. Free length ±0.010 in. Rate/force per print or DIN/ASME. Tighter bands available on review.
Volumes / MOQsPrototype through multi-million pieces per year. Blanket PO with scheduled releases accommodated.
Lead TimesNew program introduction 2 to 4 weeks. Production 4 to 8 weeks. Expedites available when releases permit.
Secondary OpsEnd grind, stress relief, heat treat, shot peen, plating, coatings, assembly, kitting
QA / DocumentationISO 9001, IATF 16949. PPAP Level 1 through 3. FAI. Certificate of Conformance. Full traceability per order.

A great fit for

  • PPAP and FAI-driven programs in automotive, industrial, and defense
  • Programs with tight cycle-life or load requirements where DFM input adds value
  • Multi-family spring programs that benefit from shared tooling strategies
  • Aerospace and medical programs requiring full traceability and cert documentation
  • Firearms and defense programs requiring ITAR-compliant domestic sourcing
×

Not the right fit for

  • Catalog or commodity purchases without a print
  • Requests requiring offshore or non-domestic manufacturing
  • Same-day or next-day emergency builds
  • Programs with no documentation or quality system requirements
Mixed springs and wireforms — Jackson Spring custom spring products
Coil springs and wireforms assortment — spring manufacturer
Extension and torsion springs — precision spring supplier
Helical compression spring — Jackson Spring
Custom wireforms — CNC wireforming capabilities
Wireforms assortment — fourslide wireform manufacturer
Spring tooling and forming machines — Jackson Spring production
Spring and wireform coiling machine — precision spring production

Additional Information

Equipment
  • 40+ CNC Wire Formers
  • 10 Mechanical Wire Formers
  • 45+ CNC Coilers
  • 4 Mechanical 4-Slide Machines
  • 20+ Spring Grinders
Certified Outside Process Capabilities

Jackson Spring works with certified outside processors for finishing and surface treatment. All outside processes are performed by approved suppliers under their quality system.

  • Shot Peening
  • E-Coating
  • Magni Plating
  • Black Oxide Plating
  • Chrome Plating
  • Powder Coating
  • Phosphate and Oil
  • Electroless and Electrolytic Nickel Plating
  • PTFE Plating
  • Electropolishing
  • Magnetic Inspection
Markets Served

Jackson Spring supplies precision springs and wireforms to a broad range of industries. Programs range from prototype development through high-volume production.

  • Aerospace and Defense
  • Automotive OE and Aftermarket
  • Firearms and Military
  • Medical and Healthcare
  • Industrial Valve and Safety Relief Valve
  • Rotary Sealing
  • Agriculture and Lawn and Garden
  • Trucking and Heavy Equipment
  • Spring Industry
In-House Process Capabilities

All core manufacturing and secondary operations are performed in-house at Jackson Spring's facility in Elk Grove Village, Illinois.

  • Grinding
  • Welding
  • Color Coating and Painting
  • Passivation
  • Tumbling
  • Stress Relieving
  • Assembly and Kitting
  • Cycle Testing
  • 3D Printing
  • PPAP Services
  • Full Spring Quality Lab Inspection
Certifications

Jackson Spring holds the following certifications and registrations. Documentation and certificates of conformance are available per order.

  • IATF 16949:2016
  • ISO 9001:2015
  • DFARS Compliant
  • ITAR Registered
  • FFL Licensed
Jackson Spring Factory at 299 Bond St, Elk Grove Village, IL 60007

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Charles Legg — Legg Associates
Charles Legg
VP & Sales Representative — Est. 1959